Revolving Term Credit Facilities and Debt - Additional Information , Revolving Loan Facility with PNC (Detail) - ASV Loan Facilities [Member] - USD ($)
12 Months Ended
Dec. 23, 2016
Dec. 31, 2016
Line of Credit Facility [Line Items]    
Maximum borrowing capacity $ 65,000,000  
Revolving Credit Facility [Member]    
Line of Credit Facility [Line Items]    
Maximum borrowing capacity 35,000,000  
PNC Bank, National Association [Member] | Revolving Credit Facility [Member]    
Line of Credit Facility [Line Items]    
Maximum borrowing capacity $ 35,000,000  
Revolving credit facility expiration date Dec. 23, 2021  
Maximum amount available limited to the sum of eligible receivables 85.00%  
Percentage of maximum amount available is limited to sum of eligible insured foreign receivables 90.00%  
Percentage of maximum amount available is limited to sum of eligible CAT receivables 95.00%  
Maximum value of assets eligible for collateral, eligible CAT receivables $ 8,600,000  
Percentage of maximum amount available is limited to sum of eligible inventory other than current finished goods machines and service parts 65.00%  
Percentage of maximum amount available is limited to sum of eligible inventory consisting of finished goods machines 80.00%  
Percentage of maximum amount available is limited to sum of eligible consisting of current service parts 75.00%  
Maximum inventory collateral limit as percentage of orderly liquidation value of eligible inventory 90.00%  
Maximum inventory collateral limit less letters of credit and any reasonable reserves established by the bank $ 15,000,000  
Maximum borrowing capacity based on available collateral   $ 19,154,000
Amount drawn on revolving credit facility   $ 15,605,000
Line of credit facility interest rate description   The initial spread for domestic and LIBOR is fixed at 1.5% and 2.5% until delivery of certain reporting documents with respect to the fiscal quarter ending March 31, 2017, respectively. At which point the spread for domestic rate will range from 1% to 1.5% and LIBOR spread from 2% to 2.5% depending on the average undrawn availability (as defined in the loan agreement).
Weighted average interest rate   3.60%
Unused line fee   0.375%
PNC Bank, National Association [Member] | Revolving Credit Facility [Member] | Domestic Rate [Member]    
Line of Credit Facility [Line Items]    
Interest rate under credit agreement   1.50%
PNC Bank, National Association [Member] | Revolving Credit Facility [Member] | Domestic Rate [Member] | Minimum [Member]    
Line of Credit Facility [Line Items]    
Interest rate under credit agreement   1.00%
PNC Bank, National Association [Member] | Revolving Credit Facility [Member] | Domestic Rate [Member] | Maximum [Member]    
Line of Credit Facility [Line Items]    
Interest rate under credit agreement   1.50%
PNC Bank, National Association [Member] | Revolving Credit Facility [Member] | LIBOR [Member]    
Line of Credit Facility [Line Items]    
Interest rate under credit agreement   2.50%
PNC Bank, National Association [Member] | Revolving Credit Facility [Member] | LIBOR [Member] | Minimum [Member]    
Line of Credit Facility [Line Items]    
Interest rate under credit agreement   2.00%
PNC Bank, National Association [Member] | Revolving Credit Facility [Member] | LIBOR [Member] | Maximum [Member]    
Line of Credit Facility [Line Items]    
Interest rate under credit agreement   2.50%
PNC Bank, National Association [Member] | Revolving Credit Facility [Member] | One Month Libor [Member]    
Line of Credit Facility [Line Items]    
Borrowing term option for funds borrowed under the LIBOR option   1 month
PNC Bank, National Association [Member] | Revolving Credit Facility [Member] | Two Month Libor [Member]    
Line of Credit Facility [Line Items]    
Borrowing term option for funds borrowed under the LIBOR option   2 months
PNC Bank, National Association [Member] | Revolving Credit Facility [Member] | Three Month Libor [Member]    
Line of Credit Facility [Line Items]    
Borrowing term option for funds borrowed under the LIBOR option   3 months
PNC Bank, National Association [Member] | Letter of Credit [Member]    
Line of Credit Facility [Line Items]    
Maximum borrowing capacity 2,000,000  
PNC Bank, National Association [Member] | Swing Loan [Member]    
Line of Credit Facility [Line Items]    
Maximum borrowing capacity $ 3,500,000